Consider a composite wave formed by two plane waves with slightly different frequencies of 0 = 2.7 x 10 rad/s and w, = 2.9 x 102 rad/s and respective wavelengths A = 17.0 nm and A2 = 16.0 nm. Calculate the propagation velocity of the carrier wave and give your results in units of m/s with 1 digit precision, rounding off to one decimal place, i.e. the nearest tenth. (time budget 5min) %3D

Two waves on one string are described by the wave functions y​1​​= 3.33 cos(2.34x − 1.21t) y​2​​= 3.33 sin(4.37x − 2.57t) where x and y are in centimeters and t is in seconds. (Remember that the arguments of the trigonometric functions are in radians.) (a) Find the superposition of the waves y​1​​+y​2​​ at x = 1.0, t = 0.0 s.